Truss Roof Load Bearing

The formula for truss loads states that the number of truss members plus three must equal the twice the number of nodes.

Truss roof load bearing.

I would think that any wall with a truss over it is not likely to be load bearing. If there is a column that supports the truss found in the wall the wall still would not be load bearing because the column is taking the load. Engineered roof truss systems may be designed to eliminate the need for load bearing walls or change where the bearing walls are located. Truss roofs are typically designed to use some interior walls as mid span support to save on costs associated with making the truss larger stronger.

Both sides of the equation should be equal in order to end up with a stable and secure roof structure. With your trusses spanning the exterior walls for the full run of the house no interior walls will be load bearing the splices on trusses are engineered to be self supportive according to the plate sizing the fact that they land over an interior wall has nothing to do with that wall being load bearing trusses are engineered to span exterior wall to exterior wall self supporting. If the number of members is labeled m and the number of nodes is labeled n this can be written as m 3 2 n. If there is a truss over the wall the wall is probably not load bearing since the truss bears the load.